Struct Mmap

pub struct Mmap;

A base allocator backed by mmap function series.

Implementations

impl Mmap

pub const fn new() -> Self

Creates a new mmap base allocator.

pub fn page_size(&self) -> usize

Trait Implementations

impl BaseAlloc for Mmap

const IS_ZEROED: bool = true

Indicates if the base allocator are returning zeroed allocations by default.

type Error = Error

The errors of the base allocator.

type Handle = ManuallyDrop<MmapMut>

The opaque handle of this allocator, usually its metadata or for RAII purposes.

fn allocate( &self, layout: Layout, commit: bool, ) -> Result<Chunk<Self>, Self::Error>

Allocate a memory Chunk of layout.

unsafe fn deallocate(chunk: &mut Chunk<Self>)

Deallocate a memory Chunk.

unsafe fn commit(&self, ptr: NonNull<[u8]>) -> Result<(), Self::Error>

Commit a block of memory in a memory chunk previously allocated by this allocator.

unsafe fn decommit(&self, ptr: NonNull<[u8]>)

Decommit a block of memory in a memory chunk previously allocated by this allocator.

impl Clone for Mmap

fn clone(&self) -> Mmap

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Mmap

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for Mmap

fn default() -> Mmap

Returns the “default value” for a type.

impl Hash for Mmap

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Copy for Mmap